Marine engine governor



Sept. l4,'1943. P. IBFAcRol-T 2,329,450

MARINE ENGINE GOVERNOR V Filed Nay 27, 1942 2 Sheets-Sheet l Sept. 14, 1943. P. BEACROFT 2,329,450

MARINE ENGINE GOVERNOR y Filed May 2'7, 1942 2 Sheets-Sheet 2 ffy@ @j 2" gmc/whom Patented Sept. 14, 1943 UNIT-ED v'This :invention relates to .a governor for a maf rine engine. When aboat is caught in .a storm `and the .sea becomes roug-hfthe vboa'thas .rocking motion and the lstern thereof will move 4upwardly :as the bow moves downwardly. When the ystern rmoves upwardly, theipropeller or ipropellers often yare exposed andthe `engineawill .then'race at 'such speed that there -Iis `dangerof .the propeller spin rning loose, .or the propellershaft may :be .twisted land broken. 'To overcome this danger, it iisneces- Vsary ato shut o!! zthezsteam Ato the .engine .as :the propeller moves out .lut the water :and then tum onthe steam as :the .propeller again :enters 1the .fwra'ter.` i ify n This is often dimcult tol accomplish Srin- :proper -timed relation :to the rnomzments of the "boat and f .it is, therefore,v :one .object Lof the `irrvention vto provide .a governor zof .such Lconstmction'that, Zas the boat rocks 'longitudinally :the prller is exposed, the throttle will be' .automatically closed to'shut oit now of steamv to :the fengine and then .reopened as the :propeller .enters fthe water. f

Another object .ofrthe :inventionis :to 'provide a governor including valves :and a pendulum structure mounted between the valves. @the apen.- :dulum :being out of engagement with ythe Valves when the aboat ris on 4substvamtiallv an zeven .keel and movable into and zout fof enzasementfwith the valves `in response to 'vertial movement; of fthe bow `and `stern "of the iboat .during .rough weather. y y

' Another objectjs:toprovideaigpvernor wherein the valves are mounted V:on 1a basefin spaced Vrela'-r tion to each-other 'lonsrtudinalivfthereoi .the :pendulum being mounted -vortioallyfover the rbase between 1th,@ Maly@ `forfswinging movement :longitudinally of :the baseand thus .permitted lto :swing longitudinallyiofa boat .into .and out of operative engagement with the valves wwhen the rgovernor .is linstalled in fa iboot with `its `base extending `parallel lto fthe length of the akjeel. l s

Another object -is =to provide a gpvernoroffsuch i lnx-the accompanying drawingszf* "Fig :i is a 'itopiplan jview offthe "improved gov- .Iernorl f .,-Eig.':2:is Lalongitudinalksectionalsview oni the line :2-932 of Fig. il. f

u ./Eig. Bis a transverse .sectional view on 4.the lineI Eig. ii. is a .fdiagrammaticiyieyw showing proved governor installed for use.; v Mg; 5..'is1a itransverse sectional fview of a ved form .zoflgovernon Fig. :6 is fa :view onrtheline of Fig. 5.

- 'This governor has a ibase, 2| vformed zo! metal or othersuitablematerialand carrying valves 2 vmodi- -ad :3; nearlzone end 'and similar valves '4 :and 5 :near gltszopposite. end; f The valves are 1015v duplicate construction :and each has :a body `6 mounted .on

construction that, as k.the .pendulum swings fin athe basennduformed:with a steam'fpassage 'l :whichfextendsithrough portions 8 I.and 19 to which fthe steam pipes .are yconnected. LA valve `plunger itil .for blocking .the fsteam passage 1 is .slidably A:mounted in ithechamber =Irl `.of xtheffrvalve body and is .inormallyheldinthe closed or :blocking posiftion by la spring t2 'heid fin rplaoe yunder compres- `slo'nfby apap or -headslz-S threaded zupon the .outer .rend .of `.the body 6.1 The steam :Il iof .thexvalve vplunger stil projects Afrom tthe `inner .fend vvof .the

body t6 .and n.passes :through a packing gland I6 I which rprevents :leak-age fof. steam .about the stem.

ilhe valves .fand 4 arerexhaust valvesyand y"valvesY 3 andi-"i are inlet .valves and, by referring '.atoSEg; r1,it:will -be seen that at each yend ofthe base ithere is ain .inlet valve which Eis (spaced from .a. -companion if exhaust j iyalve transversely :of the base. `These `valves .control *flow of Asteam .through tend portions .of 1av cylinder atti in-which is 4mounted ,a piston il 1 -having ia :piston-rod 1.158 which projects :from onefend 4of vthe .cylinder and kis provided at its :outer end with afork t9 for connection with .the lleveriilof a throttle fof conventlonal formaition which may be'openediand closed by moving @the flever to turn a' throttle -shaft '21| or :equivalent Lmedhaniem.' Atsteamsupplyvpipe 22 controlled by aimaster Valve -28 is connected with one .end zofihefpassage 11 of ltl'xe'valve 3 and abranch pipe ikleads lfrompi-pe 22 to the corresponding end Lof the passageffl yoffva'lve a5.- .iErom lthese valves, mipesz andz of rlexible material, lead to :inlets .fat Opposite .endsof 4themsylinder 1:6 :and from'an .inspctioniofcFig- .4, it will be vreadllyfseen that V/wllenithe'val-ve 3 Lis opened, the piston I1 will be .reverse direction. When .the lrod is fsl-iiftedflongiits rod in one directiony and, as the piston ap-` proaches the other end of the cylinder, air or Vsteam will be forced out of the cylinder through pipe 21 and into the exhaust pipe 29. When the i.

valves 4 and 5 are opened, steam will be delivered to the cylinder through pipe 26 and steam or air discharged from the opposite end of the cylinder through pipe 28 and branch pipe 3U to the exhaust pipe 29. AIn both cases, steam is admitted vto thev cylinderzat' one end thereof tov shift the piston and its rod longitudinally for adjustment lof. the throttle and, duringeach` movement, 'air out of contact with stems of the valves and the springs l2 will hold the plungers I0 in closing relation to passages 1 of the valves. By adjustment of the screws they may be normally spaced a predetermined distance from the valves and opening of the valves permitted only after the pendulums have swung a predetermined distance. Posts 43 extend upwardly from the base and carry rollers 44 for engaging opposite sides faces of the cross hcadsfat lower ends of the pendulums and guiding swinging movement of the pendulums linto and out of engagement with stems of the valves.

Insteadof providing two pendulums, a single pendulum may be employed. Such a construction is illustrated in Figs. 5 and 6 of the drawings, and, 'referring to these figures, it will be or steam will be discharged from the other end of A,the cylinder by the moving piston andmovement of the piston in the cylinderrwill not be interfered'with by 'accumulated airior steaml in the cylinder..4

VTher valves .are toA Vautomatically opened f when the boat rocks and to accomplish this there has beenpr'ovided apendulum structure mounted overthe base between the groups of valves. Referring to Figs. l, 2 andi3, it'will be seen that the pendulum structure consists ofv a pair-of' pendu.-

lums 3|'v and 32 which are disposed vertically and brackets so 'that .they may swingV freely r.with- Y out striking the bracketsand the lower end 'of each pendulum isf'ormed witha cross head y38 which'projects-fromopposite `sides of the pendu- `lum, as shown in Fig. 2, andisvformed atits ends ywith threadedsockets to receive screws 39 and 40 `which are yheld inV adjusted positions by locking lbolts 4| and 42.` It will be assumed that vthe base is mountedin a. boatiover the keel, longitudinally thereof, with the valves` 4'andf5 extending kin the' direction of the bow and `valves 2 and 3 toward' the stern' of the boat. As the bow dips downwardlyandthe sternrises upwardly, th'e'pendulurnsv willbe swungforwardly to open the valves 4 and 5'by' engagement of the lstriker screws 40 vwith ythe: stems I4 Vof v:these valves. Steam will then be admittedt'oone end of the cylinder-through pipe 26 and, as the piston I1 'is moved in theicylinder, air or steam will be discharged .through the pipe 28. The throttle `valve' 20 will be'xnoved to close the throttle and shutoff the engine to prevent racing of the propeller shaft 'while the propeller` is rout of the tWater. As` the 'sternsettlea the pendulums will `swing aft to .open'r the valves :2 and 3 and the 'throttle will be reopened by movement ofthe pisntori and(4 its rod by steamY entering ythe cylinder through the' pipe25 and during such movement of -the pendulums, air will escape from the cylinder through the pipe 2,1. Eventually, the pendulums'will resume their vertical positionshown in Fig. 2, in which allor-"the striker screws are seen that the pendulum 45 is mounted for swinging movement on a shaft 46 carried by and extending between upper, ends of brackets 41. vThese,brackets correspond to the .brackets or :ztandards13'4 andhaverfeet 48 at their'lower the! boat. `Swinging'ms'nverne'nt of thependulum is guided by rollers 54 mounted-'on'posts 5.5jcarried by the base between the pendulum and the vlowenends ofthe brackets. The operation of this embodiment of the invention isi the same as previously' described1 except that each pair of valves are openedby ractionof a singlependulum intstead of by I'a'pair'fof pendulums. e

`Ha'vingfthus describedtheinvention,-what is 'claimed is: f

' In a governorfor.marinesenginea the combination with a boat of a base mounted on the boat andfextending longitudinally'thereof, memberscarried by 'saidbase' in spacedlrelation to -each otherllngitu'dinally thereof for controlling iflow of iluidfto and from meansiforopening and closingvthe throttle of an 'engine as the boat rocks v"lc" r1gitudina1ly,land an actuator for said Vmembers nivably mounted over. the `base between said 2. VIna governor for marine engines'the combinationY with a boat of a base mounted on the boatand extending longitudinally thereof, valves o'arried'by said base and spaced from each other 'longitudinally thereof`,'and afpendulum mounted 'in vertical positionV over i the base :between said valves for swinging movement by gravitylongi- 1 tudinallyV of the basev and the boat into and out of engagement with the valves to adjust the .valves Yin response to longitudinal rockingofthe boat. o f Y *l y In a 'governor for marine engines, the com;

bination with a boat of a base mounted onth'e boaty and extendinglongitudinally thereof, valves carried'by said basex in -spaced relation to each other longitudinally thereofandA havingr stems 'projecting longitudinally of thebase, a standard extending upwardly from the base intermediate 'said'valves, and a pendulum pivoted *atv itsfupper end tothe standard and disposed vertically be- `Atween the valves-and having swingingmovement toward and away from the valves inl response rasaogsso f to :longitudinal `refining for thief-boat, anar airews y:extending ff-rom opposite sides "of {thelower end'l of i'he Ipendulum:iin "-pos'itiiifto engee l the Stems land .effect opening andgo'fl the 'valves -as the fpndulumJswings'longitudinally fof the 3base in responseite'ilongitudinal rocking "of ithe Nice-and the-otherivalvelbeing yanle'ixlfiaust"valve I 'for lthe throttle opening and closing gdeviee, supiporting l-meansfinfio'unted :intan upright position upon'ithe ibase intermediate length 'thereof and -dieposed vbetween r the 'pairs `of valves, and

llever means pivotallyparried `by thesupporting z jlrneans r`and movable by 'gravity in response to llongitudinal-'recking:of A'the boat into and out of :position to effect opening :and closing lof 'the ava'lv.

5. l'In-a,governor :for marine-engines, the/combination --with a boat-of'abasefmounted Jonlthe `@boat and extending longitudinally .thereof fvalves carried by said base, the valves bein'gwarranged in pairs disposed at opposite ends of the base, one valve of each pair being a feed valve for a iiuid actuated throttle opening and closing device and the other valve being an exhaust valve for the throttle opening and closing device, standards carried by said base intermediate' the length thereof and extending upwardly therefrom in spaced relation to each other transversely of the base, and a pendulum pivoted at its upper end between the standards for swinging movement longitudinally of the base and having its free lower end in position to engage and operate the valves as the pendulum swings by gravity toward and away from the pairs of valves in response to longitudinal rocking of the boat.

6. In a governor for marine engines, the combination with a boat of a base mounted on the boat and extending longitudinally thereof, valves carried by said base, the valves being arranged in pairs located at opposite ends of the base,

one valve of each pair being a feed valve for a r iiuid actuated throttle opening and closing device, and the other valve being an exhaust valve for the throttle opening and closing device, standards carried by said base and extending upwardly therefrom in spaced relation to each other transversely of the base and located midway the length thereof, and a pendulum pivoted at its upper end between the standardsvfor swinging movement longitudinally of the base and having a cross head at its lower endy extending from opposite sides of the pendulum for engaging and operating the valves as the pendulum swings about its pivot toward and away from the pairs of otherftransversely dft'he 'lbasefand located mldway the length lthere'of, a pendulum-pivotedg-at its-uppenendlbetween thetstandards for swinging :movemnt'longitudinallyiofthe base and having 'f-aiorosslheadat itsfllower-,end :extending frornr oplposit'e sides of lthe ipendulum toward the' valves, '.arid'screwsi carried-by the cross headland projecting Cfrom' 'l opposite IIends thereof `and constituting iaiijustableflstrikers lfor engaging and operatingr #Hawaii/esastheipendulumswingsabout its lpivot inweSiwns-kta longitudinal rookingrofjthe boat.

v "IU-B n :argvernor for marine. engines, the v"comvalves in response to longitudinal rocking of the boat.

7. In a governor for marine engines, the combination with a boat of a base mounted on the boat and extending longitudinally thereof, valves carried by said base, the valves being arranged in pairs located at opposite ends of the base,

one valve of each pair being a feed valve for a fluid actuated throttle opening and closing device, and the other valve being an exhaust valve for the throttle opening and closing device, standards carried by said base and extending upwardly therefrom in spaced relation to each Vbination witha;boat of aibase' mounted on fthe boat and extendinglongitudinallythereof, valves 'foarrid' byfsaid base, the valves'beingarranged Ii'n' pairlslooated 'at oppositekends ofthe base, o'ne hvalve' of each pair being a Yfeed valveY fora -ilu'i'clL actuated z'throttle opening and yclosing devvice land-'f the'i'oth'er valve bein'g an exhaust valve fior ith-e 'ithrot'tle' opening "and closing device, standards carried by rsaid4 ibase and extending `upwardly therefrom fin `spaced `relation to veach i'other1transverselyof the ibase yand located midway the flength-thereof, 'a fpendulum pivoted yat neun-por end Ifbetweenfthe standard for'swinging 'movement' longitudinallyiof the base 'andi haviingfitsiree"lower end iin position to engage and operate lthekvalves ias the pendulumlf'swings toward and away from the pairs of val-'ves iin response to longitudinal rocking lof the boatand rollers carried by the base for engagingv side faces of the lower end of the pendulum and gulding swinging movement of the pendulum.

` 9. In a governor for marine engines, the combination with a boat of a base mounted on the boat and extending longitudinally thereof, valves carried by said base and arranged in pairs spaced from each otherlongitudinally of the base, the valves of each pair being spaced from each other transversely of the base towards the other pair of valves vand having stems extending longitudinally of ther base, one valve of each pair being a feed valve and the other valve being an exhaust valve, standards carried by the base midway thelength thereof and spaced from each other transversely of the base, a pivot bar extending between and carried by upper ends of the standards, and a,` pendulum pivoted at its upper end on the pivot bar for swinging movement longitudinally of the base between the pairs f of valves with its lower end in position'to engage the stems of the valves and simultaneously operate the valves of each pair as the pendulum swingskabout the pivot bar in response to longitudinal rocking o-f the boat.

10. In a governor for marine engines, the combination with `aboat of a base mounted on the boat and extending longitudinally thereof, valves carried by said base and arranged in pairs spaced` from each other longitudinally of the base, the

other transversely of the base, a pivot bar ex` tending between and carried byvupper ends of the standards, vand a pendulum pivoted at its upper end on the pivot bar for swinging movement longitudinally of the bar toward and away from the pairs of valves 'and having a cross headr at` its lower end of afwidth adapting it to engage and operate the valves of each pair asthe pendulongitudinal rocking of they boat.

lum swings about the pivot bar 'in response vto V*11. In agovernor. for marine engines, the oombination with a boat of a base mounted on the boat and extending longitudinally thereof, valves carried by said base and arranged in pairs spaced from each other longitudinally of the base, the valves of each pair being spaced from each 4other transversely of the base towards the other pair of valves and having ystems extending longitudinally of the base, one valve of each pair being a feed valve and the other valve being anexhaust valve, standards carriedby the base midway the length thereof and spaced fromveach other transversely of the base, a'pivot barv ex-` tending between and carried by upper ends of the standards, a pendulum pivoted at its vupper end on the pivot bar for swinging movement longitudinally of the base as the boat rocks longitudinally `and having its lower end of a width adapting it to extend in bridging relation-to and Aengage a pair of valves, and rollers carried by the base for engaging side faces of the lower end of the pendulum and guiding the same into and vout of engagement with the valves to eiect opening and closingof the valves as the pendulum swings about the pivot bar longitudinally of the 'base inresponse to longitudinal rocking `of the boat.

12. In a governor for marine engines, the comybination `witha boat of a base mountedon the boat and extending longitudinally thereof, valves. carried by said base and arranged in pairs spaced lfrom each other longitudinally of the base, the valves of each pair being spaced from each other transversely of the base towards the other pair oi valvesy and having stems extending longituldinally of the base,\one valve oi' each pair being a feedy valve and the other valve being an exhaust valve, standards carried by the base between the pairs of valves and spaced from `each other `transversely oi' the base, a pivot bar extending vbetween and carried by upper lends of vthe standards,4 a pendulum pivoted at its upper opening and closing of pairs of valves as the pendulum swings longitudinally of the base about its pivot bar in response to longitudinal rocking of the boat l PERCY BEACROFI. 

